Police said there has been no activity on his debit card in that time.
Campbell is Native American with brown eyes and gray hair. He is 5-foot-10 and weighs 200 pounds. He is diabetic and partially blind. He has missed doctors’ appointments, and it’s not known if he has medications with him.
His car, a green 2014 Subaru Forrester with handicapped license plate DX 321, also is missing.
Anyone with information about Campbell’s whereabouts is asked to call the tribal police at (208) 686-2050.